Engine cover



Feb. 19, 1924. 1,484,267 Y W. W. HULL ET Alf.

ENGINE COVER Fild Aug. 25. 1925v 1 I QMMJ OW -M'//iam W Hall CharlesPatented set. is, teat.

WILLIAM w. HULL AND cnnnnns n. ULL, or DENVER, coLoItAno ENGINE COVER.

Application filed. August 25,1923. Serial No. 659,406.

To all whom it may concern Be it known that we, WILLIAM W. HULL andCr-mmns H. Home, citizens of the United States, residing at Denver, inthe city and county of Denver and State of Colorado, have inventedcertain new and useful Improvements in Engine Covers; and we do declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the characters of reference markedthereon, which form a part of this specification.

This invention relates to a protective cover or casing for internalcombustion engmes.

Internal combustion engines of the type employed in automobiles areconstantly exposed o dust and dirt, since the cooling fan blows a streamof dusty air over it at all times. Where the engine is constructed insuch a manner that the engine get-s oily on the outside, the dust willadhere thereto and accumulate until it forms a layer of considerablethickness. Engines that are provided with overhead valves in the head,which are operated by levers of the walking beam type, are especiallysubjected to oily surfaces which accumulate dirt, as the mechanismrequires lubrication and some of this l .bricating oil is always gettingonto the engine surface.

As a well known type of theengine construction to which we refer, wewill call attention to the engine employed in Chevrolet automobiles. Thepush rods extend up along one side of the engine block and the leversand valves are carried by the cylinder head. It is found from experiencethat one side of this type of engine will remain dry and clean, whilethe other side is wet with lubrieating oil and dirty.

Cur invention, briefly described, consists of applyin to an engine ofthe type referred to a sheet metal cover which entirely encloses theside which carries the push rods and enclosing the rocking levers andvalve stems by a casing that fits snugly against the upper surface ofthe cylinderhead and cooperatively engages in a suitable groove alongthe upp'eredge of the side casing.

(Fur invention can be best explained by means of a drawing and referencewill therefore be had to the accompanying drawing in which our inventionin its form is shown, and in which:

Fig. 1 is a perspective view of an engine equipped with our protectivecasing, a por' tion of the casing being broken away.

preferred Fig. 2 is a transverse section of the casing in assembledrelation, but removed from the engine. 1 5

Fig. 3 is a section taken on line 2-2, Fig. 1; and 5 Fig. tie a drawingshowing the stud bolt employed by us. in securing the casing in place;

The cylinderiblock' is designated by m meral 1 and the cylinder, cap bynumeral 2,

while 3 indicates the push rods which form 4 part of the mechanism, bymeans of which the cams operate the valves. The valve stems 4- projectthrough the cylinderhead and have a spring seat 5 secured in placethereon. A spring 6 surrounds the valve stem and abuts its ends againstthe cylinderhead and the seat and holds the valve resiliently in closedposition. Arod 7 is mounted in suitable brackets on'the cylinderhead andhas pivotally mounted thereon a number of rocking bars 8, one end ofeach of which contacts with the end of a valve stem and the other endcontacts with the upper end of a push rod, all in the manner old andwell known.

edge of the side and ends is bent downwardly on the outside and thenbent upwardly, as indicated at 15, so as to form a gutter. Theupper edgeof the outerwall 15 of the gutterterminates below the upper edge of theinner wall so that if the gutter becomes fullof water, none of the.water will flow down on the inner surface of the casing member.

- This member 7 sponding tothe exhaust opening and openings 18corresponding to the openings for'tlie bolts 10, and is clamped betweenthe cylinderhead and the exhaust pipe in the manner.

shown in Figs. 1 and 2. an openinglE) is provided near the bottom forthe gas control rod. When the casing member; just de'- has an opening 17correscribed is clamped in place, the edges of the end pieces 12 and 13fit snugl against the side of the engine and the bottom fits against theupper surface of the crank casing 20. For the purpose of enclosing therocking bars 8 and valve stems 4 and other cooperating partsathat are ontop of the cylinderhead; we providev a boXlike-casing member having atop 21, sides 22 and ends 23. The edges of the sides and ends are foldedback, as shown at 24 in Figs. 2 and 3. Two stud bolts 25 are secured tothe cylinder head and locked thereto by means of lock nuts 26. Thesebolts project through suitable openings in the top 21 and the easingmember is clamped to the cylinderhead by means of butterfly nuts 27. Theupper casing member isso constructed that one side and a portion of eachend rests in the gutters, while the other side and the remainingportions of the ends rest on the top of the cylinderhea-d. The casingjust described entirely encloses the valve operatinsets"? ing mechanismsand protects the engine from dust and dirt. The casing members may beenameled a battle ship gray or any other color and gives the engine aneat, clean appearance. v

Having now described our'invention, What We claim as new is:

An engine protective cover comprising a section having a side and twoend portions, 7

section, one side and a portion of each end wall 01" said boxlikesection cooperating with I said gutter.

In testimony whereof we aflix our signatures. i

l VIL'LIAM W; HULL. CHARLES H. HULL.

